Glass-furnace



"(NoModl.) zsn'eefs-sheet 2.

, E. JONES;

' GLASS'FURNAGR y No. 281,697. y Y lPatented July Y24, 1883.

NA PETERS. Phatouumgnpiun wzminpm, DAC

UNITED STATES PATENT QEETCEo EVAN JONES, OF PITTSBURG, PENNSYLVANIA.-

GLASS-FU RNACE.

SPECIFICATION forming part of Letters Patent No. 281,697, dated July 24, 1883.

Application filed April 21, 1883. (No model.)

T all whom/it may concern.-

Be it known that I, EVAN JONES, of Pittsburg, in the county of Allegheny Vand State of Pennsylvania, have invented a new and useful Improvement in GlassFurnaces and I do hereby declare the following to be a full, clear, and exact descriptionthereof.

My invention relates to an improvement in glass-furnaces; and it consists in the arrangement and construction of the fire-chamber, ilues, .and melting -pot, so as to utilize 'thel smoke and gas which pass off from the firechamber, and thereby produce an intense heat where it will be most effectual in the melting and finishing process of the manufacture of glass.

I will now describe my invention, so that others skilled in the art may manufacture and use the same, reference being had to the accompanying drawings, forming a part of this specification, in which- Figure 1 is a longitudinal vertical sectional view of my improved furnace. Fig. 2 is a horizontal sectional view through the line x x, Fig. l. Fig. 3 is a vertical sectional view across the furnace through the line yy, Fig. l; and Fig. 4 is a vertical cross-sectional view through the line z z, Fig. l.

Like letters of reference indicate like parts wherever they occur.

In the drawings, a represents the nre-chamber, situated at one end of the furnace, and being provided with suitable grate-bars and doors.

Between the fire-chamber a and the outer wall and top of the furnace is an air-hue, b b', formed by the vertical partition-wall c and horizontal wall d. Below the air-flue b', parallel therewith, and extending from the top of the hre-chamber a over the bridge-wall e, is a gas or smoke flue, f. On the other side of the bridge-wall e from the fire-chamber a is the melting-pot g, resting on the walls 7L 7L 71,. Between the melting-potv and the bridge-wall there is a space, i, for the passage of heat, ex-

cepting at the top,where a joint is formed, and

the wall is built around the melting-pot. Over the meltingpot g is a close dome or roof, lc, constructed of fire-brick tile, so as to form the space Z and protect the contents of the melting- -pot from the llames. Above the dome k is the ues Ao, formed by the walls h 7L h.

combustion-chamber m, being the space between the dome and the top wall of the furnace. Into this chamber m the gas or smoke flue f and air-flue b enter at a point over the bridge-wall.

y Extending from the top of the furnace down through the combustion-chamber m and dome 7c. is a feed-cylinder, n, formed of iire-brick tile. In the rear of the melting-pot the combustion space or chamber extends d own to the These flues extend forward under the melting-pot into the smoke-chamber p. Leading from the smokechamber are the smokestacks q, in which are dampers r, by means of which the draft through the stack maybe regulated.

At each side of the furnace, abovev the melting-pot, is an opening or gathering-hole, t, extending from the outer wall of the furnace into the space under the dome or roof k.

rfrom the magazine n', the cylinder is closed,

and, the fire in the fire-chamber having been started,the llames and products of combustion pass through the flue fever the bridge-wall e into the combustion-chamber m, where they unite with the heated air,which isv discharged through the air-iiue b, it being heated by its passage therethrough. The namesy pass over the dome lc, down bac-k of and at the sides ofthe melting-pot, into the ilues o, under the pot, and thence into the smoke-chamber p and out by the smoke-stacks q. This combustion inthe chamber m above, at the sides of, and below the melting-pot in the iiues o produces an intense heat, which fuses the frit in a comparatively short time. v

The advantages of my improved furnace are the saving of fuel, time, and labor.

Instead of the open meltingpot described, a closed melting-pot may be used; or the dome k may be omitted where the furnace is designed for the manufacture of common glass. v

roo

3. In L glass-furnace, the Combination of :L glass-pot having a cover or dome-shaped roof, above which is the eonlbustion-chamber7 and in feed cylinder or chute leading from outside of the furnace into the glass-pot, substantially 2o as and for the purpose speeiied.

In testimony whereof I have hereunto setI my hand this 18th day of April, A. I). 1883.

EVAN JONES.

'itnesses:

W. B. CoRwIN, .Lunas K. BAKEWELL. 

